/*
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional information regarding
* copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License. You may obtain a
* copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package org.apache.geode.cache.client.internal;
import org.apache.geode.cache.client.internal.AbstractOp;
import org.apache.geode.cache.client.internal.ConnectionStats;
import org.apache.geode.cache.client.internal.ExecutablePool;
import org.apache.geode.cache.client.internal.QueryOp;
import org.apache.geode.cache.client.internal.QueryOp.QueryOpImpl;
import org.apache.geode.cache.query.SelectResults;
import org.apache.geode.internal.cache.tier.MessageType;
/**
* Creates a CQ and fetches initial results on a server
*
* @since GemFire 5.7
*/
public class CreateCQWithIROp {
/**
* Create a continuous query on the server using connections from the given pool to communicate
* with the server.
*
* @param pool the pool to use to communicate with the server.
* @param cqName name of the CQ to create
* @param queryStr string OQL statement to be executed
* @param cqState int cqState to be set.
* @param isDurable true if CQ is durable
* @param regionDataPolicy the data policy ordinal of the region
*/
public static SelectResults execute(ExecutablePool pool, String cqName, String queryStr,
int cqState, boolean isDurable, byte regionDataPolicy) {
AbstractOp op =
new CreateCQWithIROpImpl(cqName, queryStr, cqState, isDurable, regionDataPolicy);
return (SelectResults) pool.executeOnQueuesAndReturnPrimaryResult(op);
}
private CreateCQWithIROp() {
// no instances allowed
}
/**
* Note we extend QueryOpImpl to inherit processResponse and isErrorResponse
*/
private static class CreateCQWithIROpImpl extends QueryOpImpl {
/**
* @throws org.apache.geode.SerializationException if serialization fails
*/
public CreateCQWithIROpImpl(String cqName, String queryStr, int cqState, boolean isDurable,
byte regionDataPolicy) {
super(MessageType.EXECUTECQ_WITH_IR_MSG_TYPE, 5);
getMessage().addStringPart(cqName);
getMessage().addStringPart(queryStr);
getMessage().addIntPart(cqState);
{
byte durableByte = (byte) (isDurable ? 0x01 : 0x00);
getMessage().addBytesPart(new byte[] {durableByte});
}
getMessage().addBytesPart(new byte[] {regionDataPolicy});
}
@Override
protected String getOpName() {
return "createCQfetchInitialResult";
}
// using same stats as CreateCQOp
@Override
protected long startAttempt(ConnectionStats stats) {
return stats.startCreateCQ();
}
@Override
protected void endSendAttempt(ConnectionStats stats, long start) {
stats.endCreateCQSend(start, hasFailed());
}
@Override
protected void endAttempt(ConnectionStats stats, long start) {
stats.endCreateCQ(start, hasTimedOut(), hasFailed());
}
}
}